Padlock.



H. R. TOWNE.

PADLOOK.

APPLICATION FILED MAY 1, 190a.

Patented May 4, 1909.

INVENTOR A flo n e;

' ring over the e ges of the face plates, thusseats for the face plate.

UNITED STATES PATENT OFFICE.

HENRY a. rowun-or Maw YORK, Y., ASSIGNOR 'ro THE'YALE & TownsMANUFACTURING COMPANY, OF STAMFORD, CONNECTICUT.

' PAD'LOGK.

Specification of Letters Patent.

Patented'may 4, 1909.

A nemonsiecala 1,.1908. ses me. 430,394.

To all whom it may concern: I Be it known that I, HENRY-R. Towrvm'of'New 'York, in the county of New York and State of New York, haveinvented certain new and useful Improvementsin Padlocks;

and I do-hereby declare the following to be 10 use the same.

-My invention relates to an improvement in padlocks, the object being toprovide simple and effective means for ermanentlyconnecting the severalparts of t e case, and it consists in providing a fiat ring or bandmadeof wrought or ductile metal, with internal seats for the face platesof the case, and then turnin or spinning the edges of the permanentlylocking the arts together. v

Inthe accompanying rawings, Figure 1 is a view in section of the blankfrom which the body of the lock: is formed, j Fig. .L2 shows the sameexpanded at its edges to form F' 3 is a similar view-with one of theface ates secured in place. Figs. 4 and 5 are si e and edge viewsrespectivelyof the completed lock. Fig. 6

I is a viewin section of a fportion of the case ace plate-is formedwherein the seat for {the by a separate and Fig. E -is 'an' edge and 10are views of another form of lock em:-

bodying the same method'of construction,"

flat rin 1 of wrought or ductile metal, of a width s ightly greater thanthe thickness of the case of a completed lock, and expand it at itsopposite edges as shown at ,2, so as to form the shoulders or seats 3 onwhich the face plates 5 rest. The face plates which are preferably ofsheet metal, may be flat, or t This face plate 5 is constructed to restat its outer ring 1.

In the manufacture of the lock, I take a ey may be concavo-convex asshown,, the convex surface being on the outside;

peripheral =edge on the continuous annular a seat 3 andlis permanentlysecured in such (position by turning orispinning the expanded .edge 2 ofthe ring or body 1' over the outer edge of the'face plate -5.

b After one face plate 5-=has been secured in lace, the T assembledoperative parts of the ock are placed withinthe ring or body :and

held therein by the other faceplate which is .then secured in place onits seat or'shoulcler 3 b turnin or s innin the other e anded edge 2 oftlie ring or bo ly over the oiiia er edge of said face plate.

The ring or body 1 is provided'with a slot toreceive the pivoted end 6of theshackle 7,- and alsowith a slot for the passage of the free end 8of the shackle.

In the construction shown in Figs. 6 to 10 inclusive, instead ofexpanding the opposite edges of the ring or body to form seats orsupports for thev face plates, I employ an innor narrower sheet metalring 9'within the outer ring 1*, theside edges of which form theshoulders or seats 3* on which the face plates rest, and against whichthey are held y turning orspinning .over the edges of the Theconstructionshown in Figs. 8, 9 and 10 is identical with that shown inthe other figures except that it is a heavier lock and is v providedwith key hole 10 at the bottom inview of a lock so constructed; 8, 9.11

stead of through the face plates as in Fig. 4. In Fig. 11 I have shown acast rin or bodyof brass or other ductile metal, one ace plate beingsecured, and the other seatedbut not secured. By'this method .ofconstruction the side plates become permanently secured tothe main bodyof the lock; thus making it impossible to get at the locking mechanismwithout destroying the lock.

The rings 1 shown in Figs. 1,2 and 3, and the rings l and 9 shown inFig. 8, may be formed by any of the familiar methods, as for example,from a fiat annulus punched from sheet metal and then converted by acupping process into-the desired form, or by unching a strip from sheetmetal, bending it into the form of a ring and securing its ends toether.

It is evident that changes in the method "described may be aresortedtowithout departing from the spirit and scope of my invention, hence Iwould have it understood that I do not confine myself to the exact

